陈钟敏
,
谢发勤
,
史正兴
,
王乐仪
,
傅恒志
材料研究学报
研究了各向异性定向凝固/热压R-Fe-B 永磁合金的制备过程、成分和性能。成分为Pr_(19)Fe_(74.5)B_5Cu_(1.5)的合金经快速定向凝固和充分热压变形后,具有细小、致密的晶粒组织和平行压缩变形方向的感生磁各向异性,磁性能B_r=870mT,_iH_c=1003kA/m,(BH)_m...
关键词:
R-Fe-B 永磁合金
,
directional solidification
,
hot pressing
,
magnetic properties
沈保根
,
孔麟书
,
曹蕾
,
王芳卫
,
詹文山
,
郭慧群
,
赵见高
金属学报
用快淬方法制备了单相(Er_(1-x)Sm_x)_2Fe_(17)C_y(x=0.2,<3.0;x=0.5,y<2.0)化合物,研究了它们的形成、结构、稳定性及内禀磁性结果表明,它们在高温是稳定的,随碳含量的增加,晶体结构由六角的Th_2Ni_(17)型向菱方的Th_2Zn_(17)型转...
关键词:
(Er(1-x)Sm_x)_2Fe_(17)C_y间隙碳化物
,
interstitial carbides
,
magnetic properties
YANG Hongying SHEN Baogen YANG Linyuan GUO Huiqun Laboratory of Magnetics
,
Institute of Physics
,
Academia Sinica
,
Beijing
,
China
金属学报(英文版)
The Curie temperature increases but crystallization temperature decreases with the in- crease of Ga content,x,of amorphous(Fe_(1-x)Ga_x)_(77.5)Nd_4B_(18.5) alloys.The average magnetic moment of Fe atoms is almost a constant.By X-ray diffraction and ther- momagnetic measurements,the crystalline phase...
关键词:
magnetic properties
,
null
,
null
,
null
Caiyin YOU
材料科学技术（英文）
Exchange interaction plays an important role on magnetic properties of nanocomposite magnets consisting of hard- and soft-magnetic phases. Here the exchange interaction in the Sm-Co/Co (and Fe65Co35) magnetic films was characterized by measuring static (mr(H)) and demagnetized (md(H)) remanence curv...
关键词:
multi-layered films
,
films
,
exchange
,
interaction
